class_docstr: Domain for Neural Network architectures. 
docstr: Constructor. 
docstr_tok: ["Constructor","."]
code: def __init__(self, nn_type, constraint_checker=None):
      """Constructor."""
      self.nn_type = nn_type
      self.constraint_checker = constraint_checker
      super(NNDomain, self).__init__()
  
imports: import numpy
  from copy import copy
  from ..exd.domains import Domain
label_desc: Use image node_id 1 to create a new NNDomain object from inherited base classes: Domain with example: obj = NNDomain(nn_type, constraint_checker)